Hi trapped! Yes learning any type of fiber art (knitting, crochet, embroidery, cross stitch etc.) is very frustrating to begin with. I'm a crochet instructor myself. A few places to look for help would be your local yarn stores (called LYS for short.) They usually hold classes themselves or know the instructors. Another great place for help is Ravelry.com. It's a place for fiber artists. It does have a waiting period to join up but the resources there are almost endless. You could also look for any Craft Councils or Guilds in your country. There is the Craft Yarn Council of America and the American Knitting Guild (or something close to that.. LOL I don't remember the exact wording of it.) Both of those associations will have lists of instructors plus basic tips on how to do the crafts. You could also consider buying a Learn to Knit children's kit. They have nice simple instructions with pictures and it's very step by step. I know lot's of adults that have used those kits successfully to learn, so don't be embarrassed.
When learning any type of fiber art, remember that when learning you will make lot's of mistakes and get frustrated easily. Give yourself a ten minute break, at least once, every 20 minutes. Stretch, get a drink or snack, and give yourself time to relax again. Everyone also learns at their own pace and it could take numerous tries to just cast on stitches. That is okay and perfectly normal so don't get judgmental with yourself. Also pick a very simple project to learn (like a dish cloth or bookmark) so that you will not overwhelm yourself with a huge project.
Good luck and I hope you find much success!
bec